Adjust the color scheme t

Adjust the color scheme to use lower saturation colors. Further simplify the overall elements to reduce horizontal layout, for example: For "Human Spinal Cord Injury Specimen Bank," include key elements: "Human," "Spinal Cord Injury," "Bank." For "Mouse Spinal Cord Contusion Modeling," include key elements: "Mouse Spinal Cord Injury," "Spinal Cord Section."